SOLUTION: The number N, in millions, of hearing impaired individuals of age x can be approximated by N=0.00006x^3+0.006x^2-0.1x+1.6. Approximate to the nearest million the number of hearing

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: The number N, in millions, of hearing impaired individuals of age x can be approximated by N=0.00006x^3+0.006x^2-0.1x+1.6. Approximate to the nearest million the number of hearing       Log On


   

Question 176024: The number N, in millions, of hearing impaired individuals of age x can be approximated by N=0.00006x^3+0.006x^2-0.1x+1.6. Approximate to the nearest million the number of hearing impaired individuals of ages 25-50.
Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
N(25)=0.00006(25)^3+0.006(25)^2-0.1(25)+1.6=3.7875 Round to get 4

N(30)=0.00006(30)^3+0.006(30)^2-0.1(30)+1.6=5.62 Round to get 6

Answer: 4 to 6 million people are between 25 and 30